Omnidirectional VHF Antenna for Base Radio. Tunable. Model #1490.

  • VHF 144-174 MHz (2 m) 6.7 dBd gain
  • Tunable
  • 10' 6" Tall
  • 20 1/2" (52 cm) radial length
  • 7/8 over 7/8 wave length
  • 2 Sections
  • 5 MHz bandwidth
  • 200W Power Rating
  • 110 mph max wind
  • Vertical polarization with 50 Ohms impedance
  • UHF Female (SO-239) Connector
  • Heavy Duty Fiberglass, 1 3/16" to 2 7/16" diameter
  • Mounting hardware included
  • The mounting brackets are designed to fit on a mast from 1 3/16" to 2 7/16".

The Tram 1490 VHF Antenna has durable fiberglass construction. DC ground construction allows static dissipation for low noise ratio and maximum lightning protection. 

The Tram antennas are tuned by cutting the interior sections. The cutting instructions are very exacting by millimeters. Remove the set screw at the bottom by the SO239. Slide all the guts out the bottom. Separate the sections, then cut each section. You can always leave it a little long and re-tune after checking the antenna after a primary tune.


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